Combination woodworking machine



March 1, 1927. 1,619,158

' J. SCHIMMELPFENNIG I COMBINATION. WOODWORKING MACHINE Filed'Jan, 24, 1925 2 Sheets-Sheet I March 1, 1927. 7

J. SCHIMMELPFENNIG COMBINATION WQODWORKING MACHINE Fil eci Jan. 24, 1925 z sheets-sheet 2 I I wuem coz Patented This invention chiefly for Mar. 1, 1927.

TENT ()FFICE.

JOHN SCI-IIMMELPFENNIG, or CEDAR RAPIDS, IOWA.

COMBINATION woonw'oexi'ne Maori inn.

Application filed. January 24,. 1925. :Se rial m. 4,579.

finishing hard-wood relates to machines used s'a'ndpaperi'ng, and the object of the invention is to produce 5 forming this oper isfactory manner, sanding door and window trim,

a machine capable of peration in a simple and satand is also adaptable for and for sawing, boring, and the like operations in the finishing of house interiors.

The machine has been the most common drawbacksto the floor-sander in general use.

designed to remove use ofthe This .is com- Imonly a heavy machine, requiring the efforts of two" or more one floor to another,

motor too large to be operated by nary lighting current. 7 It can thus be used but rarely in new and cost, because of houses of mod of installing special wiring, and all incidentals.

scribed, however, lar lighting system,

light socket is available.

' removing the wherever a.

- also portable by one man',

The machine. about to be d is operable from the reguand can be plugged in men to move" it from and using an electric the ordierate size the expense and trouble the other It is motor, and carrying the machine as two separate loads.

The invention is fully-disclosed in the-description and claim following,"

bein had to Fig. 1 is a view in perspective of machine used as a floor-sander.

side of the the right reference the accompanying drawings, in

the right lar View of the opposite side side with one ofthe carrying wheels removed. Fig. 4:

is a similarelevation, central, long tudinal section.

front view in perspective, showing cation of the machine to sawing, the sanding of strip lumber.

part of the trates the thereon.

mounting of .th

F ig. framework of Fig. 5,

The main body of the machine, 5,

tically rectangular box designated as the housing front end to give accessto 6, the opening cration of the machine by hinged at 8. i y th a o v Wedge lO by means 0 sheetll isheld in nals 1 2, run

or case,

a hood in bearings 13. one jo the housing being in Fi g. 5 ,is a theappliboring, and

6 shows a and illuse sanding machine is a pracherea'fiter It is open at [the the sanding roller being closed during the' o.p

The roller is of a familiar at 9 to r ceive a key or t which th a' f driape Its cit fled i il urinal earthe pulley the shaft is extended,

cord 19. Its pulley a crank ot'ed a wheel-bearing "by the lift qr ep si riejs a pulley 14;, by which the roller is driven, as willbe explained presently. Outside of as shown in Fi .2, and preferably provided with a pinhole 15, whereby it"may be readily supplied with another pulley, or quickly connected with a saw-arbor, as will be setforth more fully hereafter. The other end is also extended, s'oas to carry an auxiliary sanding roller 16, as shown in Fig. 5, whereby the sanding of a floor may be carried close to the base-board. This roller may be applied to the other end of the shaft if desired.

Th'e'housing is closed at the top by a cover 17, and on this is mounted an electric motor 18, which is supposed toconnect for operation with any lamp-socket by a suitabledrop- 20 connects by a belt 21 with the pulley 14. The proper tension is applied to this belt by 'anidler 22, carried by ed rock-shaft 23 .mounte'din bearings 24. spring 25 connects with the breaker 2'6, andis drawn or relaxed by a notched plated? engagin a stud or screw'28.

At each side of the main housing is pivpla'te 29 provided with a'hollowgudgeon 80, on which revolves a carrying wheel 31, held in place by a capring32. Each of these wheels is of practically t e same diameter as the sanding roller. Each projecting side of the cover is provided with an adjusting screw 83 abutting on'the bearing-plate as shown in Fig. 3. It is evident that the screwing of these front end of the housing and the roller from the floor, the weight of the parts, and the v superimposed motor operating in theopposite direction. By this meansit is possible to adjust the roller with all the desired accuracy to the surface to be sanded,'and the operator has then only to run the machine over thesurfa'ce, and depend entirely on the machine so adjusted to produce a smooth and level surface. I Y

the rear, the housing is carried by a caster-wheel detachably ,swiveled in a bearing 35. As the carrier-wheels are 'mounted concentric to the sanding'iroller,

it evident that the adjustment of the .hra'sive to'the floor surface is not affected of the cast'o'r, and whether Iitbe running over a rise", or ahollow, the sanding contact-remains unchanged. Provisien'as 'niad'-'for qtiiekly lifting or depressing the sanding-roll without chan screws 62.

ing the adjustment. At each side of the housing is pivoted a bell-crank lever 36, one

arm of which engages the wheel-bearing plate, and the other is linked by a connect ing-rod 37 with a bail lever 38, pivoted to the housing at 39. A stop-stud 4O limits the downward movement of this lever, Depressing this lever by the toe lifts the sand ing-roll off the floor, and a lift of the lever by the toe restores it to its former position.

The machine is propelled by a handle 4-1 attached to a ln'achet The handle serves as a support for a dust-bag 4:3 slung under the handle, its lower, open end secured to an outlet til at the rear of the housing. This outlet communicates with a fan-case ll-5 inside the housing,and in this is a small fan 46 adapted to receive the dust of the sand ing operation and throw it into the dustbag. The fan is driven by av belt 4-7 running 011 pulleys 48 and 49. An opening in one side of the housing, closed normally by a plate 50, gives access to the interior, to clear the fan of any obstruction.

In Figs. 5 and (i, the machine is shown as adapted for other operations. A frame serves as a support for the machine, and comprises sills 51 and a series of crossbeams. Two of these, 52, are provided at the rear with a bridge 53 carrying a central stud 54 to enter the socket at the rear of the housing when the castor is removed. On one of the cross-beams is a hollowed plate 55 to receive the tread of one of the carrying wheels, a flat plate. 56 serving for the other. This holds the machine securely in a fixed and definite position. Between the beams 52 is mounted a bottom-board 57, pro vided with lateral brackets 58 and adjusting screws 59, whereby the front end of the board may be raised or depressed. Adjusted to the proper thickness of easing material, the hoard serves as an accurate guide for such material, which is run through under the sanding-roll and given a smooth finish.

On a cross-beam 60 mounted a pair of sockets 61 to receive the stems of an angled guide-plate 61" set over the auxiliary sand ing-roll, and adjustable by means of hand- This serves as a guide by means of which the edges smoothly and accurately finished.

On cross-beams 63 is mounted a sawlrame 64.- carrying a tilting table 65. The saw-arbor, which is at the exact level of the sanding-roll journal, is coupled thereto by a coupling or pulley 66 made fast to the saw arbor and to the projecting end of the journal above referred to. This supplies the oiner with a shttmg saw as a very convenient ad unct in the finishing of an interior. The saw arbor may carry bits 67, and

serve as a boring machine by means of the sliding guide 68.

iliary roll, hollow hollow,

land adjusting screws engaging of material may be housing,

ournals,

Having thus described my invention, I claim:

1. In a sanding machine, a roll-carrying housing, a sanding roll journaled near one end thereof, a wheel support for the opposite end, carrying wheels adjacent to the ends of the roll and normally concentric therewith axially, and means for adjusting the wheels vertically with respect to said roll.

In a sanding machine, a roll-carrying housing, a sanding roll journaled near one end thereof. a wheel support for the opposite end, ends of the roll, and substantially concentric therewith axially, movable supports for said wheels independent of the sanding roll journal bearings, and means for adjusting said supports vertically.

3. In a. sanding machine, a roll-carrying housing, a sanding roll journaled near one end thereof, a wheel support for the oppohousing, a sanding roll journaled near one end thereof,and having a laterally extended journal adapted to carry a pulley and auxsaid journal extensions and movable transversely thereof, carrying wheels mounted on said gudgeons, and means for adjusting the gudgeons vertically.

5. In a sanding machine, a roll-carrying housing, a sanding roll journaled near one end thereof, and having laterally extended journals to carry a pulley and auxiliary roll,

journal-surrounding gudgeons movably attached to the sides of the housing,

said gudgeons, whereby the sanding roll may be accurately adjusted with respect thereto, and carryingwheels of a diameter corresponding to that of the roll, mounted on said gudgeons.

6. In a sanding machine, a rollcarrying a sanding roll journaled near one end thereofland having laterally projecting carrying wheels adjacent to and concentric to the roll hollow, wheel-supporting gudgeons loosely surrounding the roll bearings, means for adjusting them verti' cally, a motor carricdbythe housing, a driving pulley thereon, a pulley on. one of the extending journals, and a belt carried ed near one end thereof, hollow, movable carrying wheels adjacent to the gudgeons surrounding gudgeons disposed concentrically with respect to the roll, carrying wheels mounted thereon, levers in engagement with said gudgeons, a foot-lever, and links connecting said levers, whereby the carrying wheels may be shifted vertically foot-pressure.

8. In a sanding machine of the class designated, having a housing with a sanding roll journaled therein, and axially concentric carrying wheels, at motormounted on the housing, and belted to the roll, said roll having an extended, pulley carrying journal, a framework forming a fixed seat for the carrying wheels, and an intermediately disposed, vertically adjustable guide-board below the sanding roll to form an accurate backing for material run between it and the sanding roll.

9. In a machine of the class specified, a housing with a motor mounted thereon, a sanding roll journaled near the forward end of the housing, and belted to the motor, an

with respect to the roll by auxiliary sanding roll outside the housing, supporting wheels concentric to the sanding rolls, a frame adapted togive a fixed supports to the sander, and an edging-guide mounted adjustably on said frame and over the auxiliary roll.

10. In a machine of the class specified, a housing with a motor mounted thereon,'a sanding roll journaled near its forward end, and belted to the motor, the roll-journal being laterally extended for coupling to other mechanism, carrying wheels concentric to the roll, an oppositely disposed castor, a socket on the housing to receive said castor detachably, a frame having a wheel-seat and a bridge with an upstanding stud to engage said socket, a saw-frame adjacent to the roll, a saw-arbor in alignment with the roll-journal, and a coupling to connect the arbor and journal.

In testimony whereof I affix my signature.

JOHN SGHIllIMELPFENNIG. 

